DRBD performance question ?
Tue, 5 Mar 2002 10:30:15 -0800 (PST)
I was looking at DRBD performance numbers from
From Phillip Reisner's paper I gather that protocol A
is an asynchronous protocol. Therefore protocol A
should not severely impact the write performance at
primary server. Is the above assertion correct ?
If it is so how is it that the performance of protocol
A on the primary side is seems to be limitted by the
network B/W ? If protocol A is asynchronous we should
see a significant difference in throughput between
protocol A and C. However they seem to be quite close.
Is this discrepency caused by write ordering or is
there a hidden bottleneck in the protocol ?
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